scope:

This INTERIM Defence Standard specifies requirements for a varnish copal type OX for certain specified ammunition stores.

The designation 'Type OX' indicates that the material Is suitable for certain applications where a high degree of compatibility with explosives is a requirement. However, compatibility with all explosives In all environments has not been established, and Design Authorities should seek advice on particular applications from the Head of Energetic Materials and Terminal Effects Department, Defence Research Agency. Fort Halstead, Sovenoaks, Kent, TN14 78P.

NOTE: The only known congo copal resin available for the manufacture of this varnish Is held by D Amm P. The DGWIAI Strategic Materials Review Committee has recommended that design branches and project managers shall not specify the use of this varnish on any new store, or whore an alternative such as Oaf Stan 80-176, Varnish ammunition stoving Type OX, has been approved for use on analogous stores.